A few years ago while I was living in Spain, I went to see the movie "Perdiendo El Norte" that starred Yon Gonzalez and Blanca Suarez. The girl I went with mentioned how the two actors were on a TV show she absolutely loved about a school where weird things happened. Ever since then, I had a desire to watch this show. I finally got Netflix over the summer and I started to watch El Internado to help maintain my Spanish.
This was not the show I had expected to watch, but wow, it blew me away. I thought it would be ghosts and monsters and things like that, but it was so much more. There are things that happen in the first episode of the first season that link to the final episode of the final season. It is an incredibly planned out show with such attention to detail. I mean, yes, sometimes I do find a few inconsistencies, but overall, just wow.
On top of that, Yon Gonzales and Matiño Rivas are such great eye candy. I also really increased my knowledge of Spanish slang.
It took me a while to get through because the episodes are over an hour long each, but when I had a long break from working, I just charged through the episodes, staying up until 4 AM watching because WOW. Just go watch. Even if you don't understand Spanish, go put on some English subtitles! It's a fun ride with some really unpredictable story lines.